She is very busy now because she is o_______ her daughter's birthday party.

She is very busy now because she is o_______ her daughter's birthday party.
我们在科技活动周期间玩的很愉快.We had a very good time during ____________.
那个穿黑色衣服的男人就是一会儿要面试你的人.The in black is the person who will _______________________ later.
快and准!Thanks啦!